Johnson, a cast member who has been hospitalized since the crash, has accused Batson, his cattle company and the foundation of negligence in their roles as hosts of a party at Coldwater Ranch in Sherman County to celebrate the end of the musical drama's season.

Bush's intervention seeks damages of between $200,000 and $1 million. Johnson is suing for more than $1 million in damages.

The foundation denied all the allegations in an answer filed Sept. 20. Foundation attorney C. Andrew Woodward's filing also asks for a jury trial.

Batson and Coldwater Cattle Co. have not yet filed a response to the lawsuit.

"This is not anything anybody wanted or intended," Bart Pruitt, attorney for Batson and Coldwater Cattle, said Sept. 12. "As far as (the lawsuit), we'll just have to let the facts speak for themselves."

The lawsuit alleges the driver of the car transporting Johnson and Arredondo home from the party failed to yield the right of way and pulled in front of a tractor-trailer on U.S. Highway 287 north of Dumas.

The driver, "Texas" cast member Clint Diaz, had a blood-alcohol level of .165 - twice the legal driving limit - and traces of marijuana in his blood, a Texas Department of Public Safety Crash report shows.

Bush's intervention accuses Batson, the cattle company and TPHF of gross negligence.

"Defendants had actual, subjective awareness of the risk involved, but nevertheless proceeded with conscious indifference to the rights, safety, or welfare of others," the intervention states.

The crash claimed the lives of Arredondo, Diaz, "Texas" cast members Andrew Duncan and Amanda Starz and crew member Eric Harrison. Johnson and the driver of the tractor-trailer, Arthur McSay, were injured.

The lawsuit alleges Batson, Coldwater Cattle and TPHF undertook the responsibility to provide safe transportation to and from the party for Arredondo and Johnson and failed both in doing so and in taking steps to ensure Diaz was "competent and capable" of driving the other guests.